Sentence Case Converter
Our free sentence case converter restores normal English capitalization in one click: the first word of every sentence is capitalized and everything else becomes lowercase. Paste HELLO WORLD. THIS WAS TYPED IN ALL CAPS. and get Hello world. This was typed in all caps. — instantly, privately, in your browser.
Open the free case converter tool, pick Sentence Case from the sidebar, and press Convert (Ctrl+Enter). Copy the result or download it as a .txt file.
How to convert text to sentence case
- Paste or type your text into the online case converter input panel.
- Select Sentence Case from the case conversion options.
- Click Convert, then copy or download the corrected text.
When to use sentence case
- Fix ALL CAPS text: the fastest way to repair text typed with Caps Lock on.
- Normalize pasted content: clean up headlines, emails, and essays written in mixed cases.
- Prepare body copy: match standard English prose before publishing articles or reports.
Need a different style? Try the title case converter for headlines, the capital case converter for names, or thelower case converter for URLs and email addresses.
Sentence case vs. other cases
Sentence case capitalizes only each sentence start. Capital case capitalizes every word. Title case capitalizes major words but leaves articles and short prepositions lowercase. Pick the format that matches your style guide — all are available in the sametext case converter.
Frequently asked questions
How do I convert text to sentence case?
Paste your text into the tool on the homepage, choose Sentence Case, and click Convert. Results appear instantly.
Does sentence case preserve proper nouns?
No. Use Proper Case or Capital Case when names, places, or acronyms must keep their capitals.
Is the sentence case converter free?
Yes — free, unlimited, no account, and fully private with in-browser processing.
Can I fix ALL CAPS text with sentence case?
Yes. It is the quickest way to restore normal capitalization to caps-locked text.
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